UGREEN 30701 USB-C to USB-A 3.0 OTG Adapter

Overview

The UGREEN 30701 lets a USB-C phone, tablet or laptop use a USB-A accessory: a flash drive, keyboard, mouse, receiver or card reader. It is an On-The-Go (OTG) adapter with a USB-C plug and one USB-A 3.0 socket on a short flexible lead, carrying data at up to 5 Gbps.

Is it right for you?

• Suits USB-C laptops and desktops whose port carries USB data, and USB-C phones and tablets that explicitly support USB OTG or host mode.
• Suits flash drives, keyboards, mice, receivers and card readers, and printers, scanners, audio devices, cameras and controllers when the host and its software support them.
• External hard drives and SSDs work only when the host can supply enough current or the drive has its own power.
• Not a charging adapter: data use is the purpose. It adds no video, Ethernet, card slot or extra ports.

Key features

• USB 3.0 data at up to 5 Gbps when the host, adapter and accessory all run at USB 3.x speed.
• USB 2.0 and USB 1.1 accessories work at their own lower rate.
• Short flexible lead that puts less leverage on the phone or laptop port than a rigid one-piece adapter.
• Passes the host’s normal USB bus power to the accessory.
• Plug and play, though the accessory itself may need its own app, driver or permission.

What else you need

A USB-C host with USB data and host mode, and the USB-A accessory. For high-draw hardware such as a mechanical hard drive, use a powered hub or the device’s own supply.

Before you buy

• Never join two computers through it with a USB-A to USB-A cable.
• A phone may show a drive and then drop it if the drive’s start-up current exceeds what the port can give.
• Real 5 Gbps needs a USB 3.x host and device. Blue plastic alone does not prove it.
• File-system support differs by operating system, and pulling the adapter before a write completes can corrupt storage. Unmount or eject first.
• Stop using it if a connector becomes loose, hot, corroded or intermittent.